Ark is the most ancient archeological complex of the city. It is a former governmental center. The Registan square (“the poured square”) is situated in front of it.
The front entrance to the Ark is architecturally decorated with two pillars - shaped towers. The upper part of the towers is connected through a gallery with terrace premise built above it. The entrance into the gates of the Ark represents a ramp or a gradually elevating pathway which leads through the covered long corridor to the Djami mosque. Along this corridor there are premises for water and few detention cells.
In the Middle Ages Ark had been an entire city with Emir’s palace, mint, mosques, governmental institutes, storehouses, shops, prison and a square for public meetings contained within it. At those times big leather lash used to hang on one of the walls (the symbol of Emir’s power).